Home
Class 12
MATHS
If sqrtr=ae^(thetacotalpha), where a and...

If `sqrtr=ae^(thetacotalpha)`, where a and `alpha` are real numbers, then `(d^2r)/(d theta^2)-4r cot^2alpha` is

A

r

B

`1//r`

C

1

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

If tan^(2)2 theta=cot^(2)alpha then the general solution is

If cot(theta-alpha), 3cot theta, cot(theta+alpha) are in AP (where, theta != (n pi)/(2), alpha!= k pi, n , k in l ), then (2sin^(2)theta)/(sin^(2)alpha) is equal to

The radius of curvature at any point of r=ae^(theta cot alpha) is :

The product prod_(r=1)^(2n-1)tan(r alpha)( where 4n alpha=pi) is equal to

Prove that tan alpha + 2tan 2alpha + 4tan 4alpha + 8cot 8alpha = cot alpha .

(x tan alpha+y cot alpha)(x cot alpha+y tan alpha)-4xy cos^(2)2 alpha=